waste gas treatmentSelection and pit avoidance guide, the advantages and disadvantages of the three processes are fully presented.
Businesses are selected.Waste gas treatment equipmentWhen, the most afraid of stepping on the pit. Some equipment is cheap to buy and frighteningly expensive to use. Some equipment effect is good, but the operation cost is too high to use. Some equipment is installed, emissions are still unstable. In fact, as long asactivated charcoal、RTOThe advantages and disadvantages of the three mainstream processes of membrane condensation are clear, and most of the pits can be avoided.
Activated carbon adsorption is the most common and cheapest process on the market. A set of small equipment can be bought 10 thousands or 20 thousands, with fast installation and simple operation. But its pit lies in the late cost. Activated carbon saturation is very fast, to medium concentration of exhaust gas, for example, may be a week or two to change a carbon. Hundreds of kilograms of charcoal are exchanged each time, plus the cost of hazardous waste disposal, it is normal to spend more than 100,000 yuan a year. Even more troublesome is that activated carbon adsorption is only the organic matter in the exhaust gas transferred to the carbon, and not really eliminated, the replacement of the waste carbon will eventually need to spend money to deal. And if the carbon is not changed in time, the saturated activated carbon will desorb the adsorbed organic matter, resulting in a higher emission concentration than the inlet. Therefore, this process is only suitable for occasions with small air volume, low concentration and occasional opening. Activated carbon is used for continuous production, and the later cost will make you regret it.
RTO heat storage oxidation is one of the most efficient processes, which can reach more than 95%. It is not critical to the composition of exhaust gas and is suitable for continuous discharge of large air volume. Equipment operation is stable, as long as the furnace temperature is enough, the emission data is very stable. But its pit is that the energy consumption is too high. A set of equipment started 600 thousands or 700 thousands. When treating low-concentration exhaust gas, it is necessary to continuously supplement natural gas to maintain the furnace temperature of 800 degrees. It is common to burn hundreds of cubic meters a day, and the annual gas cost is hundreds of thousands or even millions. Add in electricity and maintenance costs, the annual operating costs easily over a million. The key is that RTO burns all the organic matter, and the solvent in the exhaust gas cannot be collected at all. If your home's exhaust gas concentration is low, has no recovery value, and only needs to meet the emission standards, RTO is a mature choice, but you should be prepared to burn money for a long time. If the concentration is slightly higher, the cost of burning the gas may be higher than the value of the recovered solvent, which is a big loss.
Membrane condensation recovery is a fast-developing process in recent years. It turns the organic solvent in the exhaust gas into a liquid state through multi-stage condensation and recovers it. The exhaust gas that has not been condensed is then passed through.gas separation membraneFurther enrichment through recycling. The operation only uses electricity and does not burn gas. The membrane module is changed every three to five years, and there is no trouble of changing consumables frequently. The recovered solvent has a purity of more than 90% and can be directly reused or sold for money. The equipment investment is 300,000 to 800,000, which is more expensive than activated carbon but cheaper than RTO. The disadvantage is that it is not suitable for low concentration of exhaust gas per cubic meter less than one gram of recovery value. If your exhaust gas concentration is more than one or two grams per cubic meter, and the solvent has recovery value, membrane condensation is a solution that takes into account both the standard and the income. The investment can usually be recovered in one to two years, and then it is a net income every year.
To sum up, you must make clear your exhaust gas data before selecting the type. How much air volume, how high the concentration, what is the main composition. Don't just look at the price of the equipment, calculate the life cycle of the general ledger. Activated carbon is cheap but costs money in the later period, RTO is efficient but expensive to burn gas, and membrane condensation has a medium investment but can make money. It is suggested to find a reliable manufacturer to do working condition analysis first, and then make a plan after getting the data. Don't just listen to the sales.
LuoyangWohong PetrochemicalEquipment Co., Ltd. focuses on membrane condensation recovery process, providing free working condition analysis and scheme design. The company is located at W2-1, Dongda Science and Technology Industrial Park, Luoxin Industrial Cluster Zone, Xin’an County, Luoyang City. Website: www.wohongshihua.com.
Mr. Li 13526990215
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